The Testec 21071 Oscilloscope Probe Accessory Kit is a 27-piece set of accessories designed to help users with their oscilloscope operation and maintenance. The kit includes: two sets of alligator clips, an IC pickup, scope hook, three color ground wires, resistors, semiconductors, capacitors, measurement probes, banana plugs, BNC connectors, and a cable tie. Additionally, the kit includes an instruction manual and a durable storage case.